LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
	alexandru.marginean@nxp.com, Laurentiu.Tudor@nxp.com,
	hui.song_1@nxp.com, andy.shevchenko@gmail.com,
	ran.wang_1@nxp.com
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH 1/3] gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()'
Date: Fri, 20 Aug 2021 17:37:55 +0200	[thread overview]
Message-ID: <800564ff82277544269add84bf78a5321e1090ed.1629472813.git.christophe.jaillet@wanadoo.fr> (raw)
In-Reply-To: <cover.1629472813.git.christophe.jaillet@wanadoo.fr>

Commit 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal")
has introduced a new 'goto err;' at the very end of the function, but has
not updated the error handling path accordingly.

Add the now missing 'irq_domain_remove()' call which balances a previous
'irq_domain_create_linear() call.

Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Is the 'irq_set_chained_handler_and_data()' of the remove function also
needed here?
---
 drivers/gpio/gpio-mpc8xxx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 67dc38976ab6..241bcc80612e 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -416,6 +416,8 @@ static int mpc8xxx_probe(struct platform_device *pdev)
 
 	return 0;
 err:
+	if (mpc8xxx_gc->irq)
+		irq_domain_remove(mpc8xxx_gc->irq);
 	iounmap(mpc8xxx_gc->regs);
 	return ret;
 }
-- 
2.30.2


  reply	other threads:[~2021-08-20 15:38 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20 15:37 [PATCH 0/3] gpio: mpc8xxx: Fix 3 errors related to the error handling path of the 'mpc8xxx_probe()' Christophe JAILLET
2021-08-20 15:37 ` Christophe JAILLET [this message]
2021-08-31 10:10   ` [PATCH 1/3] gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()' Bartosz Golaszewski
2021-08-20 15:38 ` [PATCH 2/3] gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()' Christophe JAILLET
2021-08-31 10:10   ` Bartosz Golaszewski
2021-08-20 15:38 ` [PATCH 3/3] gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak Christophe JAILLET
2021-08-31 10:11   ` Bartosz Golaszewski
2021-08-23  8:06 ` [PATCH 0/3] gpio: mpc8xxx: Fix 3 errors related to the error handling path of the 'mpc8xxx_probe()' Bartosz Golaszewski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=800564ff82277544269add84bf78a5321e1090ed.1629472813.git.christophe.jaillet@wanadoo.fr \
    --to=christophe.jaillet@wanadoo.fr \
    --cc=Laurentiu.Tudor@nxp.com \
    --cc=alexandru.marginean@nxp.com \
    --cc=andy.shevchenko@gmail.com \
    --cc=bgolaszewski@baylibre.com \
    --cc=hui.song_1@nxp.com \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ran.wang_1@nxp.com \
    --subject='Re: [PATCH 1/3] gpio: mpc8xxx: Fix a resources leak in the error handling path of '\''mpc8xxx_probe()'\''' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).